//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license.
//
// Microsoft Bot Framework: http://botframework.com
//
// Bot Framework Emulator Github:
// https://github.com/Microsoft/BotFramwork-Emulator
//
// Copyright (c) Microsoft Corporation
// All rights reserved.
//
// MIT License:
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED ""AS IS"", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

import * as HttpStatus from 'http-status-codes';
import * as Restify from 'restify';

import { BotEndpoint } from '../../../../state/botEndpoint';
import { sendErrorResponse } from '../../../../utils/sendErrorResponse';
import { TokenCache } from '../tokenCache';
import { TokenParams } from '../types/TokenParams';
import { TokenResponse } from '../types/TokenResponse';

interface GetTokenParams extends TokenParams {
  code: string;
}

export function getToken(req: Restify.Request, res: Restify.Response, next: Restify.Next): any {
  try {
    const params: GetTokenParams = req.params;
    const botEndpoint: BotEndpoint = (req as any).botEndpoint;

    const tokenResponse: TokenResponse = TokenCache.getTokenFromCache(
      botEndpoint.botId,
      params.userId,
      params.connectionName
    );
    if (tokenResponse) {
      res.send(HttpStatus.OK, tokenResponse);
    } else {
      res.send(HttpStatus.NOT_FOUND);
    }

    res.end();
  } catch (err) {
    sendErrorResponse(req, res, next, err);
  }
  next();
}
